Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 171 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a fitness band with app (d) a Wi-Fi doorbell camera
2. 2.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
3. 3.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) carries the data (d) reads values, decides
4. 4.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a pencil sharpener
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
8. 8.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a battery torch (d) a wind-up clock
9. 9.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain table fan (d) a wind-up clock
10. 10.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
11. 11.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
12. 12.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a plain table fan (d) a Wi-Fi doorbell camera
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi smart plug
18. 18.What does the cloud server do? (a) acts on a command (b) shows data to you (c) stores data online (d) carries the data
19. 19.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) phone app (d) cloud server
20. 20.What does the actuator do? (a) carries the data (b) shows data to you (c) measures the real world (d) acts on a command
21. 21.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi weather station (d) a pencil sharpener
23. 23.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a paper calendar (d) a plain wall switch
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
26. 26.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi smart plug (d) an app-controlled bulb
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
28. 28.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a battery torch
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
32. 32.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) actuator (d) sensor
33. 33.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
34. 34.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) measures the real world (d) carries the data
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
37. 37.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) phone app (d) cloud server
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a wind-up clock (d) a plain wall switch

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